Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
SIPIA JOSEPH A JR
  2. Issuer Name and Ticker or Trading Symbol
CHURCH & DWIGHT CO INC /DE/ [CHD]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Executive VP, Pres. & COO SPD
(Last)
(First)
(Middle)
469 NORTH HARRISON STREET
3. Date of Earliest Transaction (Month/Day/Year)
11/10/2009
(Street)

PRINCETON, NJ 08543
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 11/10/2009   M   11,550 A $ 19.5934 19,186.7303 (1) (2) D  
Common Stock 11/10/2009   M   5,036 A $ 22.3734 24,222.7303 D  
Common Stock 11/10/2009   M   3,536 A $ 21.8567 27,758.7303 D  
Common Stock 11/10/2009   M   19,050 A $ 29.5 46,808.7303 D  
Common Stock 11/10/2009   S   39,172 D $ 59 7,636.7303 D  
Common Stock               867.273 I Prfit Shring/saving Plan Trust

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option $ 19.5934 11/10/2009   M     11,550 02/01/2005 02/01/2012 Common Stock 11,550 $ 0 0 D  
Stock Option $ 22.3734 11/10/2009   M     5,036 06/17/2005 06/17/2012 Common Stock 5,036 $ 0 0 D  
Stock Option $ 21.8567 11/10/2009   M     3,536 06/16/2006 06/16/2013 Common Stock 3,536 $ 0 0 D  
Stock Option $ 29.5 11/10/2009   M     19,050 06/14/2007 06/14/2014 Common Stock 19,050 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
SIPIA JOSEPH A JR
469 NORTH HARRISON STREET
PRINCETON, NJ 08543
      Executive VP, Pres. & COO SPD  

Signatures

 /s/ Andrew C. Forsell, attorney-in-fact for Joseph A. Sipia, Jr.   11/12/2009
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Holdings have been adjusted to reflect dividends paid to reporting person under the Church & Dwight Co., Inc. Dividend Reinvestment Plan.
(2) Holdings have been adjusted to reflect shares purchased in the Church & Dwight Co., Inc. Employee Stock Purchase Plan.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

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